Results 21 to 30 of about 1,202,554 (202)

Influence of pulse current on the voltage delay of AZ21 magnesium electrode

工程科学学报, 2015
A surface film generates on AZ21 magnesium alloy in magnesium sulfate solutions,resulting in serious voltage delay.Pulse current is conducive to the application of AZ21 magnesium alloy in a battery,for it can shorten the lag time,reduce the initial ...
DENG Ling, CHEN Lin, YANG Qiao-ling, CHEN Chang-guo   +3 more
doaj   +1 more source

Electrical Double Layer Mechanism Analysis of PEM Water Electrolysis for Frequency Limitation of Pulsed Currents

Energies, 2021
This paper proposes a method for improving hydrogen generation using pulse current in a proton exchange membrane-type electrolyzer (PEMEL). Traditional methods of electrolysis using direct current are known as the simplest approach to produce hydrogen ...
Jae-Hoon Kim, Chang-Yeol Oh, Ki-Ryong Kim, Jong-Pil Lee, Tae-Jin Kim   +4 more
doaj   +1 more source

CALCULATION-EXPERIMENTAL METHOD OF RESEARCH IN A METALLIC CONDUCTOR WITH THE PULSE CURRENT OF ELECTRONIC WAVEPACKAGES AND DE BROGLIE ELECTRONIC HALF-WAVES

Electrical engineering & Electromechanics, 2016
Purpose. Development of calculation-experimental method for a discovery and study of electronic wavepackages (EWP) and of de Broglie electronic half-waves in a metallic conductor with the pulse axial-flow current of high density. Methodology. Theoretical
M. I. Baranov, S. V. Rudakov
doaj   +1 more source

Influence of Pulse Current on Inclusion Properties of Alumina in Molten Steel

Metals, 2022
In the process of metal purification, the study of controlling the morphology and size distribution of non-metallic inclusions in steel based on electric fields has attracted extensive attention.
Xin Yang, Liguo Zhang, Dong Cao, Xiao Han, Yuanyuan Zhang, Zhijun He   +5 more
doaj   +1 more source

High Current Pulsed Positron Microprobe [PDF]

Materials Science Forum, 1997
We are developing a low energy, microscopically focused, pulsed positron beam for defect analysis by positron lifetime spectroscopy to provide a new defect analysis capability at the 10{sup 10} e{sup +}s{sup -l} beam at the Lawrence Livermore National Laboratory electron linac. When completed, the pulsed positron microprobe will enable defect specific,
Howell, R. H., Stoeffl, W., Kumar, A., Sterne, P. A., Cowan, T. E., Hartley, J.   +5 more
openaire   +1 more source

INTERDEPENDENT TRANSIENT PROCESSES IN CIRCLES OF BIPOLAR DISCHARGE PULSE CURRENT GENERATOR WITH R-L-C LOAD AND LIMITED POSITIVE VOLTAGE FEEDBACK

Технічна електродинаміка
The paper analyzes the interdependent transient processes in the discharge circuits of a bipolar discharge pulse generator (DPG) with R-L-C load and limited positive voltage feedback.
С.С. Розіскулов, Д.В. Вінниченко, Н.І. Супруновська   +2 more
doaj   +1 more source

DECREASE OF TRANSIENTS DURATION AND IMPROVEMENT OF DYNAMIC CHARACTERISTICS OF ELECTRICAL DISCHARGE INSTALLATIONS BY CHANGING THE STRUCTURE OF THEIR DISCHARGE CIRCUIT

Технічна електродинаміка, 2020
The features of changing the duration and nature of transients in electric-discharge installations (EDIs) when shunting the discharge circuit of their capacitor with an additional RL-circuit instead of by regulating the voltage feedbacks are determined ...
Н.І. Супруновська, М.А. Щерба, Ю.В. Перетятко, С.С. Розискулов   +3 more
doaj   +1 more source

Smart Battery Technology for Lifetime Improvement

Batteries, 2022
Applications of lithium-ion batteries are widespread, ranging from electric vehicles to energy storage systems. In spite of nearly meeting the target in terms of energy density and cost, enhanced safety, lifetime, and second-life applications, there ...
Remus Teodorescu, Xin Sui, Søren B. Vilsen, Pallavi Bharadwaj, Abhijit Kulkarni, Daniel-Ioan Stroe   +5 more
doaj   +1 more source

A Non-inductive Coil Design Used to Provide High-Frequency and Large Currents

Sensors
Currently, cutting-edge, high-frequency current sources are limited by switching devices and wire materials, and the output current cannot take into account the demands of a high peak and low rise time at the same time.
Qing Zhu, Yu Su
doaj   +1 more source

Treatment of oilfield produced water with electrocoagulation: improving the process performance by using pulse current

Journal of Water Reuse and Desalination, 2017
The main aim of this study is to investigate the technical and economic feasibility of the pulse electrocoagulation (PE) process on the treatment of oilfield alkali/surfactant/polymer flooding produced water.
Tao Zheng
doaj   +1 more source